K.O.K. offers an extensive range of boots and bellows guaranteed to keep dirt, debris, moisture, and other contaminants out of your drivetrain, transmission, suspension, steering, and other critical systems.

We’re proud of our commitment to customer service and quality, and we’ve worked hard to build our reputation as a leading maker of high quality boots and bellows for a variety of applications and industries. Companies around the world turn to us for custom boots & bellows based on our capability to provide custom design services, innovative materials, and consistent quality.

Boots & Bellows Design 

Our experienced team can work with you to design boots and bellows to your exact specifications.  When it comes to boots and bellows, we’ve seen it all and know how to design for high performance across a variety of applications and operating conditions, including:

  • Automotive boots & bellows
  • CV Boots & CV Boot Kits
  • Power Steering Bellows & Kits
  • Marine Bellows
  • ATV boots & bellows
  • Motorcycle boots & bellows
  • Heavy equipment boots & bellows
K.O.K.’s Best Quality Boots & Bellows Materials K.O.K.’s Boots & Bellows Types
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Boots & Bellows Materials Materials

Boots & Bellows Materials

K.O.K. makes boots & bellows from a variety of materials based on your specifications.  Whether you’re looking for resistance to high temperatures, excellent flexibility to accommodate large rotation angles, or extreme durability to resist wear and tear in extreme conditions, we have the materials you need.  Our range of high performance boots and bellows materials includes:

  • Performance neoprene (CR)
  • Silicone (VMQ)
  • FKM
  • Thermoplastic elastomers (TPE)
  • Thermoplastic vulcanisates (TPV)
Types of Boots & Bellows

Boots & Bellows Quality & Testing

At K.O.K we understand that boots and bellows are small but critical parts of your equipment.  We’ve worked hard to develop a precision manufacturing process and implement a rigorous testing program to ensure that all K.O.K boots and bellows meet your exact requirements.

At our in-house testing facilities, we test our boots and bellows in a wide variety of conditions such as:

  • Low temperature environments down to -70 degrees Celcius
  • High vibration frequencies  
  • Aging tests
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